The Solar Dynamics Observatory, or SDO ... In a lot of ways, SDO has its roots in the earlier Solar and Heliospheric Observer, or SOHO, the wildly successful ESA solar mission.
For the last few days, NASA’s orbiting Solar and Heliospheric Observatory has been studying comet ATLAS S1 approach the sun, using its occulter to block out the light from our star’s disk.
such as NASA's Solar Dynamics Observatory (SDO), the NASA/ESA Solar and Heliospheric Observatory (SOHO), the Deep Space Climate Observatory (DSCOVR), and the GOES geostationary weather satellites.
Coronagraph images from the Solar and Heliospheric Observatory (SOHO) confirm that the explosion hurled a CME into space. Analysts at the National Oceanic and Atmospheric Administration ...